HDU 6315 Naive Operations(线段树区间整除区间)
摘要：
Problem DescriptionIn a galaxy far, far away, there are two integer sequence a and b of length n.b is a static permutation of 1 to n. Initially a is f 阅读全文
posted @ 2018-07-26 10:43 大桃桃 阅读(983) 评论(0) 推荐(1)
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